CAJ | 학술논문

在现代化低碳农业的背景下，研究了土壤物理性质、大豆植株形态学指标(迪克森质量指标)与收获产量对推荐施肥(NPK)及生物炭和推荐施肥(NPK)配施的响应程度。结果表明，与化肥单施(T1)处理相比，生物炭与化肥混施(T2、 T3和T4)处理土壤容重均有不同程度降低，降幅为3．1%~10．2%；大豆茎长、茎重和根长均大于化肥单施T1处理，而根重则无明显规律。与化肥单施T1处理相比， T2、 T3、 T4处理增产幅度依次在4．8%~12．1%之间，生物炭施用量与产量增幅成正比；迪克森质量指标范围在7．79~9．71之间，与产量间相关关系可以用一元二次方程表示，决定系数为0．98。说明迪克森质量指标一定程度上可以表征作物长势，研究结果可为评价不同施肥管理措施下的大豆最终产量和生长过程中植株形态的环境相应的相关性提供理论依据。
재현대화저탄농업적배경하，연구료토양물이성질、대두식주형태학지표(적극삼질량지표)여수획산량대추천시비(NPK)급생물탄화추천시비(NPK)배시적향응정도。결과표명，여화비단시(T1)처리상비，생물탄여화비혼시(T2、 T3화T4)처리토양용중균유불동정도강저，강폭위3．1%~10．2%；대두경장、경중화근장균대우화비단시T1처리，이근중칙무명현규률。여화비단시T1처리상비， T2、 T3、 T4처리증산폭도의차재4．8%~12．1%지간，생물탄시용량여산량증폭성정비；적극삼질량지표범위재7．79~9．71지간，여산량간상관관계가이용일원이차방정표시，결정계수위0．98。설명적극삼질량지표일정정도상가이표정작물장세，연구결과가위평개불동시비관리조시하적대두최종산량화생장과정중식주형태적배경상응적상관성제공이론의거。
The effect of chemical fertilizer, combined application of chemical fertilizer and different biochar application rates on soil physical properties, soybean morphological indexes and yields were studied. The results showed that in compared with T1 ( chemical fertilizer) , for the other three treatments bulk density was decreased by 3. 1% ~10. 2%, length of stem and root, stem weight and soybean yield were all increased. The percentage of the yield increased for T2, T3 and T4 were from 4. 8% to 12. 1% and meanwhile Dickson Quality Index showed the similar trend with values from 7. 79 to 9. 71. Soybean yield was positively correlated with biochar application rates or Dickson Quality Index. The relationship between yield and Dickson Quality Index could be expressed by quadratic equation with determination coefficient of 0. 98. The results illustrated that the combination of biochar with chemical fertilizer could characterize soybean growth in a certain degree, which could provide the theoretical basis for soybean yield and environment adaptability of morphological development under various fertilizer application management.